Year	Number
2004-01-01	126143
2005-01-01	139972
2006-01-01	163489
2007-01-01	372211
2008-01-01	653336
2009-01-01	760394
2010-01-01	1154915
2011-01-01	240764
2012-01-01	266743
2013-01-01	278792
2014-01-01	259406
2015-01-01	276050
2016-01-01	292959
2017-01-01	312135